Table 3 Simulation steps during the construction phase.
From: Impact analysis of tunnel crossing pile foundation at different angles
Construction process | Activate | Passivation | Remark |
|---|---|---|---|
Initial stress analysis | Strata 1–7, Excavation 1–20, Grouting 1–20, Dead Weight, Displacement Boundary | — | Check displacement clear |
Structural construction | Structure, Superstructure Load | — | |
Displacement clearing | — | — | Check displacement clear |
Excavation-1 | Shield Shell-1, Tunneling Pressure-1 | Excavation-1 | Start excavation, shield shell first |
Excavation-2 | Shield Shell-2, Segment − 1, Excavation Pressure − 2, Jack Force-1 | Excavation-2, Shield Shell-1 | Segment splicing starts at excavation-2 |
Excavation-3 | Shield Shell-3, Segment-2, Driving Pressure-3, Jack Force-2, Soil/Grouting-1, Grouting Pressure-1 | Excavation-3, Shield Shell-2, Jack Force-1 | When excavating-3, install-2 segments and grout the already finished-1 |
